package wangjg.android.wifiadmin;

import java.util.List;

import android.content.Context;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiManager.WifiLock;

public class _WifiAdmin { 
    // 定义WifiManager对象  
    private WifiManager mWifiManager; 
    // 定义WifiInfo对象  
    private WifiInfo mWifiInfo; 
    // 扫描出的网络连接列表  
    private List<ScanResult> mWifiList; 
    // 网络连接列表  
    private List<WifiConfiguration> mWifiConfiguration; 
    // 定义一个WifiLock  
    private WifiLock mWifiLock; 

 
    // 构造器  
    public _WifiAdmin(Context context) { 
        // 取得WifiManager对象  
        mWifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE); 
        // 取得WifiInfo对象  
        mWifiInfo = mWifiManager.getConnectionInfo(); 
    } 
 
    // 打开WIFI  
    public void openWifi() { 
        if (!mWifiManager.isWifiEnabled()) { 
            mWifiManager.setWifiEnabled(true); 
        } 
    } 
 
    // 关闭WIFI  
    public void closeWifi() { 
        if (mWifiManager.isWifiEnabled()) { 
            mWifiManager.setWifiEnabled(false); 
        } 
    } 
 
    // 检查当前WIFI状态  
    public int checkState() { 
        return mWifiManager.getWifiState(); 
    } 
 
    // 锁定WifiLock  
    public void acquireWifiLock() { 
        mWifiLock.acquire(); 
    } 
 
    // 解锁WifiLock  
    public void releaseWifiLock() { 
        // 判断时候锁定  
        if (mWifiLock.isHeld()) { 
            mWifiLock.acquire(); 
        } 
    } 
 
    // 创建一个WifiLock  
    public void creatWifiLock() { 
        mWifiLock = mWifiManager.createWifiLock("Test"); 
    } 
 
    // 得到配置好的网络  
    public List<WifiConfiguration> getConfiguration() { 
        return mWifiConfiguration; 
    } 
 
    // 指定配置好的网络进行连接  
    public void connectConfiguration(int index) { 
        // 索引大于配置好的网络索引返回  
        if (index > mWifiConfiguration.size()) { 
            return; 
        } 
        // 连接配置好的指定ID的网络  
        mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId, 
                true); 
    } 
 
    public void startScan() { 
        mWifiManager.startScan(); 
        // 得到扫描结果  
        mWifiList = mWifiManager.getScanResults(); 
        // 得到配置好的网络连接  
        mWifiConfiguration = mWifiManager.getConfiguredNetworks(); 
    } 
 
    // 得到网络列表  
    public List<ScanResult> getWifiList() { 
        return mWifiList; 
    } 
 
    // 查看扫描结果  
    public StringBuilder lookUpScan() { 
        StringBuilder stringBuilder = new StringBuilder(); 
        for (int i = 0; i < mWifiList.size(); i++) { 
            stringBuilder 
                    .append("Index_" + new Integer(i + 1).toString() + ":"); 
            // 将ScanResult信息转换成一个字符串包  
            // 其中把包括：BSSID、SSID、capabilities、frequency、level  
            stringBuilder.append((mWifiList.get(i)).toString()); 
            stringBuilder.append("/n"); 
        } 
        return stringBuilder; 
    }
 
    // 得到MAC地址  
    public String getMacAddress() { 
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress(); 
    } 
 
    // 得到接入点的BSSID  
    public String getBSSID() { 
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID(); 
    } 
 
    // 得到IP地址  
    public int getIPAddress() { 
        return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress(); 
    } 
 
    // 得到连接的ID  
    public int getNetworkId() { 
        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId(); 
    } 
 
    // 得到WifiInfo的所有信息包  
    public String getWifiInfo() { 
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString(); 
    } 
 
    // 添加一个网络并连接  
    public void addNetwork(WifiConfiguration wcg) { 
	 int wcgID = mWifiManager.addNetwork(wcg); 
     boolean b =  mWifiManager.enableNetwork(wcgID, true); 
     System.out.println("a--" + wcgID);
     System.out.println("b--" + b);
    } 
 
    // 断开指定ID的网络  
    public void disconnectWifi(int netId) { 
        mWifiManager.disableNetwork(netId); 
        mWifiManager.disconnect(); 
    } 
 
//然后是一个实际应用方法，只验证过没有密码的情况：
 
    public WifiConfiguration CreateWifiInfo(String SSID, String Password, int Type) 
    { 
          WifiConfiguration config = new WifiConfiguration();   
           config.allowedAuthAlgorithms.clear(); 
           config.allowedGroupCiphers.clear(); 
           config.allowedKeyManagement.clear(); 
           config.allowedPairwiseCiphers.clear(); 
           config.allowedProtocols.clear(); 
          config.SSID = "\"" + SSID + "\"";   
          
          WifiConfiguration tempConfig = this.IsExsits(SSID);           
          if(tempConfig != null) {  
        	  mWifiManager.removeNetwork(tempConfig.networkId);  
          }
          
          if(Type == 1) //WIFICIPHER_NOPASS
          { 
               config.wepKeys[0] = ""; 
               config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE); 
               config.wepTxKeyIndex = 0; 
          } 
          if(Type == 2) //WIFICIPHER_WEP
          { 
              config.hiddenSSID = true;
              config.wepKeys[0]= "\""+Password+"\""; 
              config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED); 
              config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); 
              config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); 
              config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40); 
              config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104); 
              config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE); 
              config.wepTxKeyIndex = 0; 
          } 
          if(Type == 3) //WIFICIPHER_WPA
          { 
          config.preSharedKey = "\""+Password+"\""; 
          config.hiddenSSID = true;   
          config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);   
          config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);                         
          config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);                         
          config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);                    
          //config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);  
          config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
          config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
          config.status = WifiConfiguration.Status.ENABLED;   
          }
           return config; 
    } 
    
    private WifiConfiguration IsExsits(String SSID)  
    {  
        List<WifiConfiguration> existingConfigs = mWifiManager.getConfiguredNetworks();  
           for (WifiConfiguration existingConfig : existingConfigs)   
           {  
             if (existingConfig.SSID.equals("\""+SSID+"\""))  
             {  
                 return existingConfig;  
             }  
           }  
        return null;   
    }
  
}
//分为三种情况：1没有密码2用wep加密3用wpa加密